Water cooling and circulating apparatus for explosion-engines.



No. 707,570. Patented Aug. 26, I902.

' E. ESTCOURT.

WATER BOULING AND CIBGULATING APPARATUS FOR EXPLOSION ENGINES.

(Application filed. Jan. 22, 1900.)

(No Model.)

U ITED STATES PATENT OFFICE.

ERNEST ESTCOURT, OF SOUTH HAMPSTEAD, LONDON, ENGLAND.

WATER COOLING AND CIRCULATING APPARATUS FOR EXPLOSION-ENGINES.

vaPEGIIEIGA'IION forming part of Letters Patent N 0. 707,570, datedAugust 26, 1902. Application filed January 22, 1900. Serial No. 2,364.(No model.)

To all whom it may concern:

Be it known that I, ERNEST Esrcoonr, a subject of the Queen of England,residing at 23 Gompayne Gardens, South Hampstead, in the county ofLondon,Englaud, have invented certain new and useful ImprovementsRelating to ater Cooling and Circulating Apparatus forExplosion-Engines, Specially Suitable for Use on Motor-Cars; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to water-cooling apparatus for explosion-enginesof the type having a jacketed cylinder which is kept cool by watercirculating therethrough. In such engines as heretofore arranged thewater is usually pumped through the circulation. pipes and jacket; andthe object of this invention is to arrange a system of circulating-pipesin connection with the cylinder in such a way as to produce a moreefiective circulation and cooling of the water without the aid ofpumping machinery and to arrange the coolingpipes in such a manner thatthe water is effectively cooled by the atmosphere.

Figure 1 is a sectional elevation taken on two parallel vertical planes,one through the engine-cylinderB and the other through the conduits O D.Fig. 2 is a perspective view of a motor-carriage,showing applied theretoand on a reduced scale the engine and connections shown in Fig. 1. Fig.3 is an enlarged section taken on the line 4 4 of Fig. 1.

According to this invention the engine is fitted with a number ofwater-circulating pipes A above and below the cylinder B and openinginto upright conduits O D at each end. One of these conduits (in thedrawings the conduit 0) is blocked at about its center by a partition0'. In the upper part of this blocked conduit 0 is a funnel-shaped pipeE, the lower end of which opens in the lower part of the blocked conduitjust below the partition 0, the upper end being connected to the underside of an upper transverse conduit F, the other end of which conduit Fis, by means of a short pipe G, in open communication with the otherupright conduit D. By this arrangement any water carried through thesystem by the steam generated therein will be trapped in the uppertransverse conduit F and carried by the funnel E to and deposited belowthe partition 0 in the upright conduit 0. The steam will meanwhile becollected in the central enlargement or dome F of the conduit F, intothe upper part of which opens one end of a pipe I-I, whose lower enddischarges outside the apparatus, thus allowing of the overflow of wateror the escape of steam into the atmosphere.

In the lower part of the upright conduit D is a weighted plunger D,loosely fitting the interior of the conduit D and supported on a spiralor other spring d, so as to be always above the level of the uppermostopening a of the lower series of water-circulating pipes A. (See Fig.3.)

(Z is a flange or projection on the interior of the conduit D to form aseat to receive the weighted plunger D in the event of thesupporting-spring d breaking or compressing, so that in no case can theplunger D block up the openings of the adjacent ends of the pipes A.This plunger D is made conical or tapering at its upper part D and has away or ways therethrough for the passage of water and is fitted with avalve d opening downward. The plunger is fitted fairly loosely in theinterior of the conduit D and is free to move up and down therein by thevibration set up either by the working parts of the motor or by thejolting of the vehicle, if fitted to one, when traveling over roughroads. As the "plunger moves upward the water above it will .bedisplaced with little friction by the conical or tapering top D and thevalve d will open downward, allowing the displaced water to pass to theunder side of the plunger D. As the plunger moves downward the valvewill close and the plunger will then act on the surface of the water,forcingit downward to the open ends of the pipes A. In this way Iutilize the vibration inherent in every explosion-engine to assist inpromoting the circulation of water in the pipes.

Three pipes J, K, and L connect the system with the cylinder-jacket M.One pipe, J, leads from the lowest part of the system into the lowestpart of the cylinder-jacket M, the second pipe, K, leads from the top ofthe cylinder-jacket into the upper part of the blocked upright conduit0, and the third pipe, L, leads from the opposite side of the top of thecylinder-jacket into a lower horizontal, conduit N, the ends of whichpass through the sides of the upright conduits O and D, the end 'ninside the conduit D being closed while the other end n is open.

The circulation of the water in the apparatus will now be understood.The water becoming heated will flow through the pipes K and L into theconduit 0 above the partition 0, thence through the upper series ofwaterpipes A to the upright conduit D- and down through the latter tothe lower series of water-pipes A, thence into the lower part of uprightconduit 0, and through the pipe J back to the cylinder-jacket M.

To more particularly point out the function of the pipe H and the nozzleE, hereinabove referred to, it will be seen that the pipe H only allowsthe contents of the enlargement F to be drawn 01f from the upper partthereof. In practice very little steam passes off through pipe H. Theupper pipe F receives nothing except steam which may rise from thevertical conduit D and which steam may carry atoms of water with it.When the steam reaches the pipe F, it is there condensed and passes offas water down the funnel-tube E into the lower part of the conduit 0.This condensed steam replenishes the system and passes up to thewater-jacket M through the pipe J. In Fig. 2 the pipe F is quite outsidethe apparatus, and the whole of its surface is exposed to theatmosphere, whereby a very rapid interchange of heat takes place, andthe pipe F consequently acts as a condenser. The small pipe H maytherefore be regarded in the nature of a safety-pipe, allowing the steamwhich may not be condensed in the tube F to pass cit into theatmosphere, and the quantity so passing off is very minute. Consequentlythe loss, if any, by the evaporation passing ofi through the pipe H isvery small and practically inappreciable. The structure shown in Fig. 2merely shows how the apparatus is applicable to a working motor-car andalso shows that the pipe F is quite outside the apparatus, so as to actas a condenser.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is

IVater-circnlating apparatus for explosionengines, comprising a seriesof water-circulating pipes above and below the cylinderjacket openinginto upright conduits one of which is blocked, a transverse conduitconnecting the upper ends of said upright conduits and having afunnel-tube on one end passing into the lower part of the blockedupright conduit, with means for allowing the escape of surplus water andgenerated steam and for trapping the water carried by the steam, andpipes connecting the cylinderjacket to the water-circulatin g system,all arranged substantially in the manner and for the purposehereinbefore described and illustrated in the accompanying drawings.

In testimony whereof I affix my signature in presence of two witnesses.

ERNEST ESTGOUBT.

Witnesses:

G. D. NEVILLE, WILMER M. HARRIS.

